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Stunting plants' skyward reach could lead to improved yields

... of plant biologists but only in a broad sense. Phytochromes tend to control more than one function, Montgomery explained, making it hard to nail down at the molecular level exactly what causes a specific effect in a plant. Plants are adept at using sunlight to determine the time of year and ...

The science of hammering

... and get the job done after a few clean, sharp strokes of the hammer, whereas for the rest of us a similar challenge is likely to end up with the nail bent in the middle, a sore thumb and a wounded pride. Dr. Duncan Irschick and his colleagues at the University of Massachusetts at Amherst have ...

Genital stimulation opens door for cryptic female choice in tsetse flies

... male genital structures by cutting off a tooth that is typical of this species of tsetse fly and by smoothing a bristly surface by applying a coat of nail polish. In addition, they modified the sensations perceived by the female from these structures by altering the female sense organs on the portions ...

American Chemical Society's weekly PressPac -- May 6, 2009

... tests in animals Chemical & Engineering News New European Union (EU) regulations restricting use of animals to test the safety of shampoo, nail polish, and other personal care products are forcing cosmetic makers to seek alternative ways to test these products, according to an article ...

Stanford researchers develop biodegradable substitutes for wood, plastic bottles and other materials

... quite attractive looking and very strong," said EVP collaborator Craig Criddle, a professor of civil and environmental engineering. "You can mold it, nail it, hammer it, drill it, a lot like wood. But bioplastic PHB can be produced faster than wood, and hemp can be grown faster than trees." The ...

Arsenic and old toenails

... amounts it is present in tiny quantities less than 0.003% in the toenail. In people who have not been exposed at all it is less than 0.00003%. If a nail looks different from normal that is usually due to physical damage (you stubbed your toe or dropped something on it) or a minor fungal infection that ...

Scientists uncover evolutionary keys to common birth disorders

... MSX1 gene in two different birth disorders: either cleft lip and palate or skin derivative disorders ('ectodermal dysplasias') that include tooth and nail malformations. The mutations associated with the more severe clefting disorder are found within unique portions of the MSX protein, thus providing ...

Superglue from the sea

... in the synthetic glue, he used water-soluble polyacrylates, synthetic polymers that are related to commercial superglues and are used in floor wax, nail polish, pressure-sensitive adhesives and Plexiglas. The "side chains" attached to the synthetic glue's polymer backbones copied the natural worm ...

Scientists build 'roach motel' for nasty bugs of the bacterial variety

... used was Pseudomonas aeruginosa PAO1, which is a close cousin but poses little health threat. While Schanze said further tests are needed to nail down the spheres' potency, initial experiments revealed they wiped out more than 95 percent of nearby PAO1 bacteria after exposure to light for about ...

Forum to focus on math and mechanics behind life processes

... demand a greater understanding of biology. "People have known for a long time that mechanics is important, but very little work has been done to nail down what's going on at the cellular level," said Jacques Dumais, associate professor of organismic and evolutionary biology at Harvard University. ...

'Barren' seafloor teeming with microbial life

... top students and faculty. Edwards believes that most people just dont realize how much life thrives in the watery depths. If we can really nail down whats going on, then there are significant implications, she said. It is my hope that people turn their heads and notice that theres life down ...

Bacteria 'feed' on earth's ocean-bottom crust

... But the newfound abundance of seafloor microbes makes it possible that early life thrived--and perhaps began--on the seafloor. "If we can really nail down what's going on, there are significant implications," Edwards said. "I hope that people turn their heads and notice: there's life down there." ...

New chemotherapy combo produces side effects, but no extra efficacy, in early breast cancer patients

... that appears on the palms of the hands and soles of the feet, and which can be very painful if untreated. They also found increased rates of nail changes, stomatitis (inflammation of the mucous lining the mouth and throat), and diarrhoea. The scientists now intend to follow up their work by ...

Continents loss to oceans boosts staying power

... Lee's research, which appeared in the March 24 issue of the Proceedings of the National Academy of Science, marks the first attempt to precisely nail down how much magnesium is lost through two markedly different routes -- destabilizing convective forces deep inside the Earth and chemical ...

Fine print: New technique allows fast printing of microscopic electronics

... engineering application we had to understand why this was happening, Aksay said. Korkut took up the challenge and worked for nearly six years to nail down the mechanisms at play. In the end, she found that a key factor was that the liquid jet was transferring some of its electrical charge to the ...

Evolution tied to Earth movement

... upright walking, bigger brains and other key steps in human evolution. But it all happened within the right time period, he says. Now we need to nail it down. ...

Salmonid hatcheries cause 'stunning' loss of reproduction

... Blouin, an OSU associate professor of zoology. Some have suggested that hatchery and wild fish are equivalent, but these data really put the final nail in the coffin of that argument. Even a few generations of domestication may have significant negative effects, and repeated use of captive-reared ...

The appearance of your hands can reveal your age, study finds

... of female hands ?blemishes and hand veins were removed or jewelry and nail polish were added ?to unaltered photographs to assess which hands looked ... a lack of wrinkles and veins characterized the youngest looking hands. nail polish and jewelry were also found to make hands appear younger looking. ...

Scientists tie several cancers to common 'oncogene engine'

... the real culprit ?and that is the MiT transcription factors or their targets. There is lots of excitement, and I believe that is the way to really nail these tumors." ...

How nice, brown rice: Study shows rice bran lowers blood pressure in rats

... percent and, via the same mechanism, inhibited angiotensin-1 converting enzyme, or ACE. “There’s much work being done on various bran fractions to nail down any health benefits,?says the journal’s editor, James Seiber, Ph.D., who is also director of the U.S. Department of Agriculture’s Western ...

Skin disease common among Hispanic farmworkers in North Carolina, research shows

... had skin disease, while 78 percent of the 54 men did. The study was conducted during the 2004 growing season. For men, the most common diagnoses were nail fungus, foot fungus and acne. Among the women, diagnoses included excessively dry skin, foot fungus and acne. "While these may not be a direct ...

Scientists discover that three overlapping signals in embryo help get the backbone right

... found these signals in 1992, and since then, we've figured out how they work. But because there are so many of them, it's been difficult to really nail down that they are essential," Harland said. "We've had to knock down three of them to prove that they're essential." In the 1920s, working at the ...

Falling ants glide back to trunk to avoid dangers of forest floor

... "That's when I realized something was up with this behavior and it was worth checking into a bit more." By painting the ants' rear legs with white nail polish, he was able to track their fall and establish that they come in backwards to the tree, hit and hang on, though they often tumble down the ...
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